chr20-11919826-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_014962.4(BTBD3):​c.526G>A​(p.Ala176Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000026 in 1,461,248 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

BTBD3
NM_014962.4 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.06
Variant links:
Genes affected
BTBD3 (HGNC:15854): (BTB domain containing 3) Enables identical protein binding activity. Predicted to be involved in cerebral cortex development and dendrite morphogenesis. Predicted to be located in nucleus. Predicted to be active in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.30098498).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BTBD3NM_014962.4 linkuse as main transcriptc.526G>A p.Ala176Thr missense_variant 3/4 ENST00000378226.7 NP_055777.1 Q9Y2F9-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BTBD3ENST00000378226.7 linkuse as main transcriptc.526G>A p.Ala176Thr missense_variant 3/41 NM_014962.4 ENSP00000367471.2 Q9Y2F9-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000398
AC:
10
AN:
251398
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135866
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.0000260
AC:
38
AN:
1461248
Hom.:
0
Cov.:
30
AF XY:
0.0000261
AC XY:
19
AN XY:
726972
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000297
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 22, 2022The c.526G>A (p.A176T) alteration is located in exon 3 (coding exon 3) of the BTBD3 gene. This alteration results from a G to A substitution at nucleotide position 526, causing the alanine (A) at amino acid position 176 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
23
DANN
Benign
0.94
DEOGEN2
Benign
0.20
.;.;T;.;.;T;.;T;T
Eigen
Benign
0.17
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.85
.;.;.;T;.;D;D;T;T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.30
T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.77
T
MutationAssessor
Benign
1.4
.;.;L;.;.;L;.;.;.
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-0.54
N;N;N;N;.;N;.;N;N
REVEL
Benign
0.15
Sift
Benign
0.25
T;T;T;T;.;T;.;T;T
Sift4G
Benign
1.0
T;T;T;T;T;T;T;T;T
Polyphen
0.17
.;.;B;.;.;B;.;.;.
Vest4
0.41
MutPred
0.56
.;.;Loss of ubiquitination at K179 (P = 0.1815);.;.;Loss of ubiquitination at K179 (P = 0.1815);.;.;.;
MVP
0.90
MPC
0.67
ClinPred
0.065
T
GERP RS
6.1
Varity_R
0.12
gMVP
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs749413025; hg19: chr20-11900474; API